Pipe collars are made from plates, with dimensions and tolerances in accordance with EN 1092-1 (Din 2642) or for lap joint flanges according to Asme B16.5. We produce pipe collars made from plates, with dimensions and tolerances in accordance with EN 1092-1 (Din 2642) or for lap joint flanges according to Asme B16.5. Collars are certified according to the following standards: Dimensions and tolerances for flanges ANSI 150 For flanges ANSI 150# Diameter of lap Radius of fillet Length Ø NPS Ø DN Ø D G R H 1/2 15 21,3 +1,6/-0,8 35 +0/-1 3 +0/-1 5 +/-2 3/4 20 26,7 +1,6/-0,8 43 +0/-1 3 +0/-1 6 +/-2 1 25 33,4 +1,6/-0,8 51 +0/-1 3 +0/-1 8 +/-2 1 1/4 32 42,2 +1,6/-0,8 64 +0/-1 5 +0/-1 8